Warm-air register.



Patented Dec. 16,1902

No. 7l5,806.-

T. E. HUNT.-

WABM AIR REGISTER.

(Application Med Feb. 26, 1-902.)

3 Sheets-Sheet I.

(No Mddel.)

m. 715,806. Patented D80. l6, I902. T. E. HUNT. WARM AIR REGISTER.

A umion' filed Feb. 26,1002.)

3 Shuts-Sheet 2.

(No Model.)

m: mums Prrzns co. PHoT O-LITHQ, WASHINGTON. n. c.

Patented Dec. I6, 4902.

T. E. HUNT. WARM AIB'REGISTER.

(Applidution filed Feb. 28, 1902.)

3 Shaais-8heai 3.

(No Model.)

we mums PETERS cc PHOTO-LUNG" WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

THOMAS E. HUNT, or BLUE ISLAND, ILLINOIS, ASSIGNOR, BY MESNE AS-SIGNMENTS, TO QUAKER MANUFAOTURING COMPANY, OF CHICAGO HEIGHTS,ILLINOIS, A CORPORATION.

WARM-AIR REGISTER.

SPECIFICATIGN forming part of Letters Patent No. 715,806, dated.December 16, 1902. Application filed February 26. 1902. Serial No.95,731. (No model.)

To all whom it may concern:

Be it known that I, THOMAS E. HUNT, acitizen of the United States,residing in Blue Island, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in VVarm-AirRegisters, of which the following is a specification.

The objects of the invention are to improve the construction andarrangement of the plates or castings constituting the front, the

top, and the front side corners of the frame or support for a warm-airwall register box or casing; to improve the construction of the tin orsheet-metal body of the register box or casing and its attachment to theplates or casting of the box or casing frame; to improve theconstruction orjoint at the bottom of the register box or casing for theready reception of and a close fit around the warmair-supply pipe orboot; to improve the construction and operation of the controllingdamper or door for the passage of the warm air from the register, and toimprove generally the construction of the various elements which enterinto the formation of the register as a whole and the construction andoperation of the register.

The invention consists in the features of construction and combinationsof parts hereinafter described and claimed. Y

In the drawings, Figure 1 is a front elevation of the register; Fig. 2,a top plan view of the same; Fig. 3, a bottom plan view of the same;Fig. 4, an end elevation of the register; Fig. 5, a verticalcross-section of the register in place on a section of pipe; Fig. 6, aninner face View of the front plate or casting for the register; Fig. 7,an under face view of the top plate or casting for the register, one endbeing broken Off; Fig. 8, a detail showing one-of the front corners ofthe body of the register-casing with the attaching vertical corner postor support therefor; Fig. 9, a detail in elevation of one of thevertical front corner posts or supports; Fig. 10, a detail incross-section of one of the corner posts or supports; Fig. 11, ahorizontal crosssection of the register-walls, taken on line 11 of Fig.5, with the front casing, the swinging door or damper, and the grateremoved, showing the convexity of the end plates of the body of thecasing for giving a spring action to retain the controlling damper ordoor in an adjusted position; Fig. 12, an inner face view of one end ofthe register-body, showing a bow-spring for maintaining the controllingdoor or damper in an adjusted position; Fig. 13, a horizontalcross-section of the end shown in Fig. 12, showing the attachment of theretaining bow-spring for the door or damper; Fig. 14, a detail showingone corner of a door or damper having a trunnion or journal-pin forsuspending the door or damper to swing from the trunnions or pins; Fig.15, a plan view showing awire gratein one form of construction; andFigs. 16 and 17, sectional detail views, enlarged, of the rear and frontjoint-sockets, respectively, at the bottom of the shell or casing.

The register is constructed with a front A, preferably of cast metal andof an oblong or square formation in elevation, as may be desired.Thisfront plate or casting A has-a lower solid plate a and an upperplate or bar a and side plates or bars a surrounding an oblong openingA, through which the warm air can flow from the register-box into theroom in which the register is located when the controlling damper ordoor is in proper position. The lower front wall a, and the up per frontbar a, forming a portion of the upper wall, are in dilferent verticalplanes, with the lower front plate farther projecting than the upperbar, as shown in Figs. 5 and 6, and a horizontal shoulder a is formed onthe inner face of the bar or wall at, extending on each side to avertical shoulder or ledge a from which ledge or shoulder a flange orrim a extends rearwardly, joining at the top a flange or rim a extendingrearwardly from the top bar of the front or casting, leaving the frontor casting open at the bottom with a shoulder a at the lower end of theledge 01. on each side. The complete front plate or casing A has a lowerplate in a straight vertical plane with upwardlyand rearwardly extendingend bars or walls a and an upper cross-bar in a rearward plane to thelower plate, enabling the register to be set with its lower portionprojecting from the vertical wall of the room. The flanges or rims formreceivers for the end plates of the tin or sheetmetal body of the box orcasing, and, as shown, on the inner face of the front plate, below theopening for the outflow of air, are lugs a for supporting the front sideor edge of a grate, forming an open partition below and a support forthe door or damper controlling the flow or passage of the warm air fromthe register-box.

The top B of the register is also preferably constructed of cast metaland of an oblong formation, with perfectly square corners. This topplate or casting B has on its upper face a flange or rim B, forming anoblong collar for the attachment of the riser or eX- tension leading tothe room above that in which the register is located, which rim orflange surrounds an opening B preferably of an oblong formation. Therear edge of the top plate or casting B has thereon a depending ledge orrib I), and at each end of this plate or casting, on the under face, isa ledge or rib Z). The rear ledge or rib has thereon in the arrangementshown three depending lugs b spaced equal distances apart, two of whichare shown in Fig. 7, and each end ledge or rib has thereon in thearrangement shown a single depending lug b and extending out from eachrear and end lug is a rest or shoulder b against which the upper edge ofthe outer tin or sheet-metal plate of the casing abuts when the parts ofthe register are assembled, while the lugs furnish a separation forspacing the outer and inner tin or sheet-metal walls of the body of thebox or casing, so as to form a dead-air space between the two walls. Ateach outer corner on the under face of the top plate or casting B at thejuncture of the rear and end flanges or ribs is a right-angle lug bextending out from which in right-angle relation to each other are restsor shoulders 1), making a square corner for the attachment of the wallsof the body of the box or casing, the shoulders or rests b beingin linewith the shoulders or rests b of the depending lugs b and b at the rearand ends of the top plate or casting. At the forward terminus of eachend flange or rib b is a spacing-lug 11, extending out from which on oneside is a shoulder or rest I) in alinement with the shoulders or rests band b on each end of the top plate or casting for the abutting edge ofthe plate or wall of the body of the casing. The outer corners and thestraight-line faces of the lugs, in conjunction with the shoulders orrests, furnish asupport and contact for the edge of the outer tin orsheet-metal plate of the body, and a support and contact for the innertin or sheet-metal plate of the body when used is furnished by the underface of the top plate or casting. At the front on the under face of thetop plate or casting B, near each end, is a depending lug b the lowerend of which comes to an apex, leaving a space between the front face ofeach lug and the rear face of the front plate or casting of a widthsufficient for the reception of the upper edge of the door or damper G,controlling the outflow of the warm air from the register.

At each exterior front corner of the register box, within therearwardlyextending flanges on the front plate, is a corner post orsupport 0, (shown in Figs. 8, 9, and 10,) each post or support having aflat wide body or wing c and a flange or wing c, standing in right-anglerelation to the body or wing c and having an outward projection when theparts are assembled. The rear edge of the body or wing c has near itslower end a lug or projection c and near its upper end a lug orprojection 0 each lug or projection having therein a hole for thepassage of fastening screws or rivets. The upper end of the post orsupport 0 has therein a circular depression c in the form shown in Figs.8 and 9, which depression furnishes a support and bearing for a trunnionor journal-pin on the upper corner of the door or damper for controllingthe outflow of the air from the register, and at the lower end of eachpost or support C is a projecting foot 0 and depending from the foot andthe end of the postor support is a lug c", in which is a hole for thepassage of a fastening screw-bolt or rivet, and the foot of eachstandard when the parts are assembled passes beneath the shoulder a atthe lower end of the vertical ledge a of the front plate or casting,giving a counter-support between the corner post or upright and thefront plate or casting for maintaining the corner post or upright in avertical position for the attachment of the front edge of the side wallsof the body of the casing, leaving the lower end of the front plate orcasting projecting in advance of each corner post or upright.

The construction shown has a double wall for the body of the casing ofthe register; but the casing can be formed of a single wall for thebody. Each wall may be formed of a plate of tin or sheet metal bent intoshape to have a wall at each end and a rear wall. The outer wall D atits lower end has an upturned edge (I, and the inner wall at the loweredge has an upturned edge c with a turned-over edge e, which overlapsthe top of the turned edge (I, forming aconuection between the two wallsor plates at the bottom on each end and the rear side by which the twowalls will be held against springing apart laterally or separating, andat the same time a space 61 is formed between the two upturned edges dand e, which space furnishes a socket for the entering of the top edgeof the warm-air-supply pipe or foot for the attachment of the registeras a whole to the warm-air pipe or foot, so as to have the attachment aclose fit, preventing the escape of warm air upwardly into the spacebetween the two walls or plates of the body, which space constitutes adead-air space and prevents a radiation of heat that might produceinjurious effects or overheating of the walls in the use of theregister. The socket is rendered tight and close-fitting when the edgeof the warm-air-supply pipe or v foot is entered thereinto by reason ofthe spring action or clasping effect produced by the upwardly-turnededges 61 and c of the plates and the connection of these edges one tothe other at the top. The socket is exceedingly simple in constructionand at the same time furnishes a close tight fit for the register to thewarm-air-supply pipe or foot with an effectual safeguard against theescape of warm air into the dead-air space between the two walls of thebodyor to the outside of the register. The front edge of the ends of thewalls or plates of the body of the casing terminate at the rear line ofthe out wardly-projecting flange or wing c of each corner post orsupport, so that the main body is complete to the corner post orsupport,

. which would leave a space for the forward projection of the main plateor casting at the lower end. This space for the outer end walls isfilled by a strip of tin or sheet metal D, soldered, riveted, orotherwise attached at the turned ends to the end walls or plates andextending across the front of the register inside, of the lower portionof the front plate or casting, and the ends of the inner wall or plate Eare united by a strip E, soldered, riveted, or otherwise attached to theend wall or plate with a space between the two front strips D and E. Thefront strip D has an upwardlyturned edge 61 with a turned-over interioredge d of the strip D, and at its top the strip E has a turned-over edgee which overlaps the top edge of the strip D, so that the two strips areengaged one with the other and locked against excessive spreading orseparation, and when united a space (1 is formed between the upturnededges 61 and 6 corresponding to the space cl between the upturned edges(1 and e, for the purpose of entering the edge of the warm-air-supplypipe or foot, as described for the space 61, and operating in the samemanner and for the same purpose.

An open partition or grate extends across the register from front torear. This open partitioif or grate F in the construction shown in Figs.1, 2, 3, and 5 isof cast metal having a front barf, a rear barf, and endbars f with cross-barsf from the front bar to the rear bar, leavingspaces between the crossbars and the end bars. This open partition orgrate F is located at the upper termination of the front vertical platectof the frontcasting A and is of a width to extend across the spacefrom front to rear of the register and, as shown, is supported at itsfront edge on the lugs a and is held at its rear edge by pressureagainst the inner wall or plate of the body of the casing; but the gratecould be otherwise supported so long as it furnished a guide and supportfor the door or damper controlling the outflow of air from the register.

register.

The grate instead of being cast could be formed of wire woven together,so as to leave open spaces or meshes for the passage of the warm air,and a grate F of wire is shown in Fig. 15, consisting of a frame flongitudinal wiresf and cross-wires f forming a mesh with squareopenings; but the form of the mesh or spaces for the wire grate can beother than that shown without in any manner changing the operation ofthe grate.

A solid door or damper G is employed for directing the outflow of thewarm air from the This door or damper, as shown in Figs. 1, 2, 3, and 5,has its upper end entered in the space between the lugs 12 and the rearface of the top bar of the front or casting A, which space is wider atthe bottom to permit of the necessary swing of the door. Thelower end ofthe door, as shown, isinclined, so as to present a sharp front edgewhich rests on and bites against the upper face of the grate for thegrate to furnish a support for the door or damper in its swingingmovements, for which purpose the grate is on the arc of a circlecorresponding to that described by the lower edge of the door or damperin swinging. The door instead of being heldonly between the dependinglugs 19 and the front bar ct can have at each corner a trunnion orjournal-pin g, as shown in Fig. 14, to enter the bearing 0 and suspendthe door from the corner posts or uprights to permit of the swingingmovement. The door can be swung completely forward to close the openingA in the front or casting, or partly back, as shown by the dotted linesin Fig. 5, or completely back, so thatits lower edgeabuts against therear wall of the body of the casing. It will thus be seen that by meansof this swinging door or damper the direction of the outflow of the warmair can be regulated as may be desired for the outflow to pass whollythrough the opening A or wholly through the opening B or be split ordivided to pass into both openings. The door, near its lower edge in theconstruction shown, is provided with a handle or lug, by means of whichit can be swung into any desired position. This knob or handle can be asolid knob or handle G, as shown in Figs. 1 and 3, or it can be a handleG in the shape of a coil of wire or other metal, the last form of handlebeing preferred, as it will not become too highly heated. The doorshould be held in its adjusted position, and for this purpose one orboth of the end walls of the body of the easing can be curved inwardlyto present a convex bearing-face which will engage the end or ends ofthe door and hold the door in an adjusted position, and end walls ofthis character are shown in Fig. 11. Instead of having the end wallsfurnish the frictional contact for holding the door or damper in anadjusted position springs can be employed for this purpose, as shown inFigs. 12 and 13, in which the spring H is of a curved or bow formationhaving at each end a tongue it to enter walls h in the end wall of thebody of the casing, and the spring is of the requisite elasticity tofurnish the necessary pressure for the frictional engagement to hold thedoor or damper and at the same time is of a nature to give and take inthe movements of the door or damper, by which it will be flattened atone end and raised at the other end, according to the direction ofmovement of the door or damper, and other means than the convexity ofthe end wall or walls or a bow spring or springs can be employed forholding the door or damper in an adjusted position.

The outer andinner walls when abody with a double wall is used arearranged with the two walls one within the other and interlocked at thelower end by the upturned edges, which form the socket-joint for thelower end of the body. The top plate is placed on the upper end of thetwo walls, with the spacinglugs of the top plates entered between thewalls, and the top plate is secured in place by rivets, screw-bolts, orotherwise passing through the middle lug at the rear side or edge of theplate and the lug at each end of the plate. The corner posts or supportsare inserted between the plates of the double walls at each front cornerand secured in place by rivets, screw-bolts, or other means passingthrough the lugs of each corner-iron, which lugs are entered into thespace between the walls, with the edges of both the inner and outerwalls flush against or abutting the outward-extending rib or flange ofthe corner-iron. The front strips D and E are interlocked by theirupturned and overturned edges and are secured by soldering or otherwiseto their respective body-walls, and the front plate is then placed inposition and secured by screw-bolts or other means passing through theshoulder or rib a of the front and through holes in the rib or flange cof each corner-iron, completing the assembling of the register as awhole. The front can be removed when the register is to be placed in thewall, and the register without the front can be placed in position andits lowerend entered onto the end of the warm-air-supply pipe or thefoot, and when in position the front can be replaced in position,completing the placement of thepegister in the side wall. The projectionof the lower portion of the register from the side wall gives anincreased opening at the bottom, enabling the full capacity of thewarm-air-supply pipe to be utilized in the register. The corners of thecasing at the bottom are square, enabling the end walls to be perfectlystraight, giving an easier attachment for the warm-air-supply pipe orfoot and rendering the attachment and connection safer than with the useof rounded corners and irregular sides. The joint-socket atthe lower endof the casing receives the end of the warm-air-supply pipe or boot,which can be entered into the socket-joint and will be clamped thereinand held without requiring any soldering or other securing means, and atthe same time the space will be closed against the passage of warm airto the outside'of the easing. The swinging door or damper enables theoutflow of air to be all directed through the front opening or alldirected through the top opening or divided for part of the air to flowthrough the front opening and part through the top opening, and thesecombined features add materially to the register and give increasedadvantages therefor over registers of the usual construction.

What I regard as new, and desire to secure by Letters Patent, is

1. In a warm-air register, the combination of a frame comprising a frontplate having an opening in its upper portion and having its lower orbottom portion projected beyond its top, a top plate having an openingsurrounded by an upwardly-extending flange forming an attaching-collar,corner posts or uprights for the front of the box or casing and a casinghaving end walls and a rear wall attached to the top plate and thecorner-posts, substantially as described.

2. In a warm-air register, the combination of a frame comprising a frontplate having an opening in its upper portion and having its lower orbottom portion projected beyond its top, a top plate having an openingsurrounded by an upwardly-extending flange forming anattachingcollar,spacing-1ngs depending from the top' plate on its underside at its rear edge and its end edges, corner posts or uprights forthe front of the box or casing and a casing having double end walls anda double rear wall attached to the top plate and the cornerposts andspaced apart on the ends and rear by the spacing lugs, substantially asdescribed.

3. In a warm-air register, the combination of a frame comprising a frontplate having an opening in its upper portion and having its lower orbottom portion projected beyond its top, a top plate having anopeningsurrounded by an upwardly-extending flange forming anattaching-collar and having spacing and attaching lugs depending fromits under face at the ends and rear side, corner posts or uprights forthe front of the box or casing having spacing and attaching lugs thereonand a casing having double end walls and a double rear wall attached tothe top plate and the corner-posts by the attaching-lugs and spacedapart by the lugs, substantially as described.

4. In a warm-air register, the combination of an outer wall and an innerwall, of a sheetmetal casing, each wall having its bottom edge inwardlyand upwardly turned and one edge entered into and interlocked with theother edge, leaving a tapered space between the two edges at the bottomof the casing forming a socket-joint for the reception and retention ofthe end of a warm-air-supply pipe or boot, and a front casing having anopening in its upper section projecting above the top plate,substantially as described.

5. In a warm-air register, the combination of a flat top plate providedwith an opening for the passage of warm air and having on its under faceadjacent to its end and rear side edges depending spacing and attachinglugs, and asheet-metal casing consisting of an outer wall and an innerwall attached to and spaced apart by the lugs of the top plate, eachwall having at its bottom an inwardly and upwardly turned edgeinterlocked one with the other between the walls and forming ajointsocket for the reception and retention of the end of awarm-air-supply pipe or boot, and a front casing having an opening inits upper section and projecting above the edge of the top plate,substantially as described.

6. In a warm-air register, the combination of an inner and outer wall ofa sheet-metal casing each wall having an inwardly and upwardly turnededge on its bottom with the edges interlockedone with the other betweenthe walls, an outer cross-strip at the front of the casing extendingfrom end to end of the outer wall of the casing, and an inner crossstripat the front of the casing extending from end to end of the inner wallof the casing, each strip having an inwardly and upwardly turned edge atits bottom with the edges interlocked one with the other between thestrips and the strips interlocked at the top, the inwardly and upwardlyturned bottom edges of the walls and strips forming a socket-jointaround the bottom of the casing for the reception and retention of theend of a warm-air-supply pipe or boot, substantially as described.

7. In a warm-air register, the combination of a front plate having anopening in its upper portion and having a projected lower portion belowthe opening, a flat top plate having a central opening therein, a casingattached to the top plate, an open-work partition or support in thecasing and having a plain upper face and an upward curvature from frontto rear, and a door or damper swinging at its upperedge from the frontedge of the top plate and bearing at its lower edge on the upper face ofthe partition or support, substantially as described.

8. In awarm-air register, the combination of an open front having aclosed projected portion below the opening, an open flat top having onits under face at its rear and end edges depending lugs, a shell orcasing attached at its upper end to the depending lugs of the top plate,a support in the shell or casing, and a swinging door or damper in theshell or casing contacting with the support for directing the outflow ofwarm air from the register, substantially as described.

9. In a warm-air register, the combination of an open front having aclosed projected portion below the opening, an open flat top having onits under face at its rear and end edges depending lugs, a shell orcasing attached at its upper end to the depending lugs of the top plate,a support in the shell or casing, a swinging door or damper operating inthe shell or casing having its lower edge contacting with the su pportfor directing the outflow of warm air from the register, and means forholding the door in an adjusted swung position, substantially asdescribed.

10. In a warm-air register, the combination of an open front having aclosed projected portion below the opening, an open flat top contactingwith the open front having on its under face at its rear and end edgesdepending lugs, front corner posts or standards having attaching lugs orears, a shell or casing attached at its upper end to the depending lugsof the top plate and at its forward side to the corner posts orstandards, a transverselyextending support in the shell or casing, and aswinging door or damper operating in the shell or casing above thesupport for directing the outflow of warm air from the register,substantially as described.

11. In a warm-air register, the combination of a register box or casinghaving a front composed of a single plate with a delivery-opening forwarm air in its upper portion and a closed projected lower portion belowthe opening and having a flat top with a delivery-opening for warm airtherein, and a door or damper swinging from its top within the box orcasing to cooperate with both openings for controlling the outflow ofwarm air from the register and front opening, substan tially asdescribed.

12. In a warm-air register, the combination of a register box or casinghaving a deliveryopening for warm air in its front and adelivery-opening for warm air in its top, a door or damper verticallysuspended to swing back horizontally from its top within the box orcasing and cooperating with both openings for controlling the outflow ofwarm air from the register through either opening and havinga beveledlower edge presenting a sharp corner, and a curved grate engaged by thesharp corner of the lower edge of the door or damper for the bite of thecorner on the support to hold the door or damper in an adjustedposition, substantially as described.

THOMAS E. HUNT.

WVitnesses:

OSCAR W. BOND, SAMUEL W. BANNING.

